CN203864443U - Automatic speed change driving device for electric vehicle - Google Patents
Automatic speed change driving device for electric vehicle Download PDFInfo
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- CN203864443U CN203864443U CN201420299100.4U CN201420299100U CN203864443U CN 203864443 U CN203864443 U CN 203864443U CN 201420299100 U CN201420299100 U CN 201420299100U CN 203864443 U CN203864443 U CN 203864443U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
An automatic speed change driving device for an electric vehicle comprises a driving motor and a speed change mechanism, a motor shaft of the driving motor is supported on a motor box cover through a bearing, and a primary driving gear of the speed change mechanism is fixedly connected with the motor shaft of the driving motor in the circumferential direction. One end of a main shaft of the speed change mechanism is supported in an inner hole of the primary driving gear through a bearing, the other end of the main shaft is supported on a speed change mechanism box cover through a bearing, a main shaft transmission gear is fixed on the main shaft in the circumferential direction, and a friction disc is fixed to the main shaft transmission gear. A plurality of centrifugal blocks are evenly distributed around the axis on the primary driving gear, the fixed ends of all the centrifugal blocks are hinged to the primary driving gear through hinge pins, the free ends of all the centrifugal blocks are respectively connected with a reset spring, the centrifugal blocks are located in an inner cavity of the friction disc, and a power transmission relation is formed between the centrifugal blocks and the friction disc through centrifugal movement. The automatic speed change driving device is simple in structure, low in manufacturing cost, easy and convenient to operate, long in service life and good in riding comfort, effectively promotes acceleration performance and gradeability of the whole vehicle, and increases endurance mileage and the like.
Description
Technical field
The utility model relates to transmission of vehicle field, particularly a kind of automatic gear shifting drive device of battery-driven car.
Background technology
The actuating device of existing battery-driven car has following kind conventionally:
A kind of for drive motor adds double reduction mechanism, the drive motor equipower adjustable speed ratio of this actuating device is low, needs more power reserve for actual applying working condition variation range, and this is very uneconomic.The shortcoming of itself has: while 1, upward slope and when heavy duty accelerates, electric current is larger, consumption of current large and while going up a slope under power to being suitable for.When upward slope and when heavy duty accelerates, easily cause that electric current sharply increases, drive motor inefficiency, and easily burn controller and motor, heavy-current discharge also directly affects the life-span of storage battery simultaneously; 2, the combined efficiency that travels under various road conditions is lower, and course continuation mileage is shorter; 3, poor, the hill climbing ability of acceleration capability a little less than.
A kind of for drive motor adds two grades manually or electric control automatic gear shifting mechanisms, although this actuating device can solve the hill climbing ability shortcoming such as a little less than.The shortcoming of itself has: 1, excessive to gear impact in shift process, reduce gear life, and travelling comfort is poor; 2, adopt 3 grades of decelerations, drive mechanism complexity, driving efficiency is lower; 3, adopt automatically controlled automatic shifting, control complexity, reliability is lower, increase cost.
The actuating device of two kinds of above-mentioned battery-driven cars travels under various road conditions that combined efficiency is lower, a little less than hill climbing ability, acceleration capability is poor, reliability is poor etc. situation, cause the tractive performance ability of battery-driven car weak, travelling comfort is lower.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and a kind of automatic gear shifting drive device of battery-driven car is provided, and its compact conformation is simple, quick and easy for installation, long service life, travelling comfort is high, reliability is high, driving efficiency is high.
The technical solution of the utility model is: a kind of automatic gear shifting drive device of battery-driven car, comprise drive motor and speed-changing mechanism, the motor shaft of described drive motor covers at motor housing by bearings, described speed-changing mechanism comprises elementary driving gear component, spindle assemblies, countershaft assembly, the transmission gear that reverses gear, back fork assembly, and the primary drive gear in described elementary driving gear component is circumferentially fixedly connected with the motor shaft of drive motor, one end of main shaft in described spindle assemblies by bearings in the endoporus of primary drive gear, the other end of main shaft by bearings on speed-changing mechanism case lid, on described main shaft, be circumferentially fixed with spindle transmission gear, on described spindle transmission gear, be fixed with friction disc, described primary drive gear pressed on ring axle center is uniform arranges multiple centrifugal-blocks, the fixed end of each centrifugal-block is hinged by bearing pin and primary drive gear, the free end of each centrifugal-block is connected with returning pull-spring, described centrifugal-block is arranged in the inner chamber of friction disc, form power transmission relationship by centrifugal motion and friction disc, one end of countershaft in described countershaft assembly covers at motor housing by bearings, the other end of countershaft by bearings on speed-changing mechanism case lid, motor case lid is fixedly connected with speed-changing mechanism case lid, on described countershaft, be circumferentially fixed with countershaft driver gear, described countershaft driver gear engages with spindle transmission gear, on described countershaft, there is elementary driven gear by bearings, described elementary driven gear engages with primary drive gear, one axial end of described elementary driven gear is provided with overriding clutch, elementary driven gear forms power transmission relationship by overriding clutch and countershaft, described another axial end of elementary driven gear is provided with internal tooth, one reverses gear transmission gear spline fitted on countershaft, the transmission gear that reverses gear engages or separates by moving axially with the internal tooth of elementary driven gear, described back fork assembly is connected with the transmission gear that reverses gear by shift fork.
On main shaft in described spindle assemblies, circumferentially fix a last utmost point driving gear, one transmission shaft is provided with a last utmost point driven gear and engages with last utmost point driving gear, one end of described transmission shaft covers at motor housing by bearings, the other end of transmission shaft by bearings on speed-changing mechanism case lid, on described transmission shaft, being also provided with an involute cylindrical gear engages with the output gear on a diff, one end of differential gear box covers at motor housing by bearings, the other end of differential gear box by bearings on speed-changing mechanism case lid.
Described centrifugal-block is three.
On described countershaft, be circumferentially fixed with an axle sleeve, described overriding clutch is arranged between elementary driven gear and axle sleeve.
Described drive motor comprises motor shaft, stator core assembly, rotor core assembly, motor stator casing, motor left end cap and motor right end cap, heat expansion method flush fit between described stator core assembly and motor stator casing, and arrange and mark closely screw and prevent stator core assembly rotation, described motor left end cap, motor right end cap is separately positioned on stator core assembly two ends, and be fixedly connected with motor stator casing by bolt, described rotor core assembly is arranged on motor shaft, be arranged in stator core assembly, the two ends of described motor shaft respectively by bearings on motor left end cap and motor right end cap.
Adopt technique scheme: because the speed-changing mechanism of the automatic gear shifting drive device of this battery-driven car comprises elementary driving gear component, spindle assemblies, countershaft assembly, the transmission gear that reverses gear, back fork assembly, the primary drive gear in described elementary driving gear component is circumferentially fixedly connected with the motor shaft of drive motor, one end of main shaft in described spindle assemblies by bearings in the endoporus of primary drive gear, the other end of main shaft by bearings on speed-changing mechanism case lid, on described main shaft, be circumferentially fixed with spindle transmission gear, on described spindle transmission gear, be fixed with friction disc, described primary drive gear pressed on ring axle center is uniform arranges multiple centrifugal-blocks, the fixed end of each centrifugal-block is hinged by bearing pin and primary drive gear, the free end of each centrifugal-block is connected with returning pull-spring, described centrifugal-block is arranged in the inner chamber of friction disc, form power transmission relationship by centrifugal motion and friction disc.In the time of low vehicle speeds, motor shaft drives primary drive gear low speed rotation, the centnifugal force of centrifugal-block is not enough to overcome extension spring drag effect, centrifugal-block under extension spring effect not the friction disc on main shaft be combined, primary drive gear not directly by transmission of power to spindle transmission gear, but power is passed to spindle transmission gear after countershaft assembly slows down again, realize low vehicle speeds.In the time that car speed increases, motor shaft drives primary drive gear High Rotation Speed, the centnifugal force of centrifugal-block overcomes extension spring drag effect, centered by hinge-point, outwards throw away, friction disc on main shaft is combined, primary drive gear directly by transmission of power to spindle transmission gear, realize high vehicle speeds.The utility model is realized the speed change of vehicle automatically according to the rotating speed height of motor shaft.And described primary drive gear pressed on ring axle center is uniform arranges multiple centrifugal-blocks, and under the effect of high speed centrifugation power, the outer wall of centrifugal-block combines with friction disc.Contact with friction disc by polylith centrifugal-block and coordinate reliability high.Use flexible friction transmission compared with rigid gear transmission, have advantages of that vibration is little, noise is low, and travelling comfort is high.
One end of described countershaft covers at motor housing by bearings, the other end of countershaft by bearings on speed-changing mechanism case lid, motor case lid is fixedly connected with speed-changing mechanism case lid, on described countershaft, be circumferentially fixed with countershaft driver gear, described countershaft driver gear engages with spindle transmission gear, on described countershaft, there is elementary driven gear by bearings, described elementary driven gear engages with primary drive gear, one axial end of described elementary driven gear is provided with overriding clutch, elementary driven gear forms power transmission relationship by overriding clutch and countershaft, described another axial end of elementary driven gear is provided with internal tooth, one reverses gear transmission gear spline fitted on countershaft, the transmission gear that reverses gear engages or separates by moving axially with the internal tooth of elementary driven gear, described back fork assembly is connected with the transmission gear that reverses gear by shift fork.In the time of low vehicle speeds, elementary driven gear by overriding clutch by transmission of power to countershaft, then countershaft driver gear on countershaft by transmission of power to spindle transmission gear.Adopt overriding clutch, in the time of vehicle backing, overriding clutch not by the transmission of power of elementary driven gear to countershaft, but by pulling back fork assembly, the back fork assembly transmission gear that reverses gear is engaged with the internal tooth of elementary driven gear, by the transmission gear that reverses gear by the transmission of power of elementary driven gear to countershaft.Pull back fork assembly and make back fork assembly reverse gear transmission gear while engaging with the internal tooth of elementary driven gear, realize the locking of reversing gear.Pull back fork assembly and make to reverse gear transmission gear while separating with the internal tooth of elementary driven gear, realize the releasing of reversing gear.This overriding clutch adopts flexible engagement, its transmission principle is mainly the mutual compression relying on after joint element Contact, utilizes the friction force transmitting torque producing after compressing, and has solved in shift process and has impacted excessive to gear, reduce gear life, the problem such as travelling comfort is poor.Overriding clutch adopts after flexible engagement, can make the rotating speed of secondary part increase more lentamente, reduces physical shock, makes the mode of operation of battery-driven car more steady, and travelling comfort is high, and transmitting torque is large, noiseless when work.
In a word, the utility model travels under various road conditions, and combined efficiency is high, hill climbing ability is strong, acceleration capability is good, reliability is high, the tractive performance ability of battery-driven car is strong, travelling comfort is high.And the transmission of the utility model high, low speed shares spindle transmission gear, main shaft etc., and drive mechanism is very simple, and driving efficiency is high, manufacturing cost is economized, and assembles laborsavingly, and reliability of service is high.
Brief description of the drawings
Fig. 1 is package assembly schematic diagram of the present utility model;
Fig. 2 is the structural representation of drive motor of the present utility model;
Fig. 3 is the structural representation of speed-changing mechanism of the present utility model;
Fig. 4 is the structural representation of elementary driving gear component of the present utility model;
Fig. 5 is that the A of Fig. 4 is to schematic diagram;
Fig. 6 is the structural representation of spindle assemblies of the present utility model;
Fig. 7 is the structural representation of countershaft assembly of the present utility model;
Fig. 8 is the structural representation of overriding clutch of the present utility model;
Fig. 9 is the structural representation of transmission shaft component of the present utility model;
Figure 10 is the structural representation of diff of the present utility model;
The schematic diagram of speed-changing mechanism when Figure 11 is vehicle backing;
Figure 12 is the part schematic appearance of speed-changing mechanism.
In accompanying drawing, 1 is drive motor, 11 is motor shaft, 12 is stator core assembly, 13 is rotor core assembly, 14 is motor stator casing, 15 is motor left end cap, 16 is motor right end cap, 2 is speed-changing mechanism, 21 is speed-changing mechanism case lid, 22 is elementary driving gear component, 221 is primary drive gear, 222 is centrifugal-block, 223 is returning pull-spring, 23 is spindle assemblies, 231 is main shaft, 232 is spindle transmission gear, 233 is friction disc, 234 is last utmost point driving gear, 24 is countershaft assembly, 241 is countershaft, 242 is countershaft driver gear, 243 is elementary driven gear, 2431 is internal tooth, 244 is overriding clutch, 2441 is overrunning clutch body, 2442 is overriding clutch housing, 2443 is overriding clutch roller, 2444 emit for overriding clutch stage clip, 2445 is stage clip, 2446 is overriding clutch press spring base, 245 is axle sleeve, 25 is the transmission gear that reverses gear, 26 is back fork assembly, 261 is shift fork, 27 is transmission shaft component, 271 is transmission shaft, 272 is last utmost point driven gear, 273 is involute cylindrical gear, 28 is diff, 281 is differential gear box, 282 is output gear, 3 is oil sealing.
Detailed description of the invention
Referring to Fig. 1 to Figure 12, a kind of automatic gear shifting drive device of battery-driven car, comprises drive motor 1 and speed-changing mechanism 2, and the motor shaft 11 of described drive motor 1 covers at motor housing by bearings.Described drive motor 1 comprises motor shaft 11, stator core assembly 12, rotor core assembly 13, motor stator casing 14, motor left end cap 15 and motor right end cap 16, heat expansion method flush fit between described stator core assembly 12 and motor stator casing 14, and arrange and mark closely screw and prevent stator core assembly rotation, described motor left end cap 15, motor right end cap 16 is separately positioned on stator core assembly 12 two ends, and be fixedly connected with motor stator casing 14 by bolt, described rotor core assembly 13 is arranged on motor shaft 11, be arranged in stator core assembly 12, the two ends of described motor shaft 11 respectively by bearings on motor left end cap 15 and motor right end cap 16.
Described speed-changing mechanism 2 comprises speed-changing mechanism case lid 21, elementary driving gear component 22, spindle assemblies 23, countershaft assembly 24, the transmission gear 25 that reverses gear, back fork assembly 26, transmission shaft component 27, diff 28.Primary drive gear in described elementary driving gear component 22 is circumferentially fixedly connected with by bolt with the motor shaft of drive motor; Between motor shaft and elementary transmission gear, be provided with sealing paper washer.Between described drive motor 1 and speed-changing mechanism 2, be provided with oil sealing 3, prevent that the lubricating oil in speed-changing mechanism from entering in drive motor.One end of main shaft 231 in described spindle assemblies by bearings in the endoporus of primary drive gear, the other end of main shaft 231 by bearings on speed-changing mechanism case lid.On described main shaft 231, be circumferentially fixed with spindle transmission gear 232.Spindle transmission gear 232, final stage driving gear utilize rectangular spline to be arranged on main shaft 231, and axial limiting.On described spindle transmission gear 232, be fixed with friction disc 233.Friction disc 233 utilizes bolt to be arranged on spindle transmission gear 232.Described primary drive gear pressed on ring axle center is uniform arranges multiple centrifugal-blocks.The outer wall of centrifugal-block is provided with friction lining.Described in the present embodiment, centrifugal-block is three.The fixed end of each centrifugal-block is hinged by bearing pin and primary drive gear, and the free end of each centrifugal-block is connected with returning pull-spring, and the other end of this returning pull-spring is fixed on the fixed end of adjacent centrifugal-block.Certainly, the other end of this returning pull-spring also can be fixed on primary drive gear.Described centrifugal-block is arranged in the inner chamber of friction disc 233, forms power transmission relationship by centrifugal motion and friction disc 233, realizes gear and automatically switches.One end of countershaft 241 in described countershaft assembly is by bearings on motor right end cap 16, and the other end of countershaft 241 is by bearings on speed-changing mechanism case lid 21, and motor right end cap 16 is fixedly connected with speed-changing mechanism case lid 21.Between motor right end cap 16 and speed-changing mechanism case lid 21, be provided with sealing paper washer, fix by screw.On described countershaft 241, be circumferentially fixed with countershaft driver gear 242.Countershaft driver gear 242 utilizes rectangular spline to be arranged on countershaft 241, and spacing with circlip for shaft.Described countershaft driver gear 242 engages with spindle transmission gear 232, on described countershaft 241, there is elementary driven gear 243 by bearings, described elementary driven gear 243 engages with primary drive gear, one axial end of described elementary driven gear 243 is provided with overriding clutch 244, and elementary driven gear 243 forms power transmission relationship by overriding clutch 244 and countershaft 241.On described countershaft 241, be circumferentially fixed with an axle sleeve 245, described overriding clutch 244 is arranged between elementary driven gear 243 and axle sleeve 245, and certainly, this axle sleeve 245 also can be arranged in overriding clutch 244, utilizes rectangular spline and countershaft 241 fixing.Overriding clutch 244 utilizes screw to be fixed on elementary driven gear 243.The transmission gear 25 that reverses gear utilizes rectangular spline and countershaft 241 to fix, and axle sleeve 245 is arranged in overriding clutch 244, utilizes rectangular spline and countershaft 241 fixing.Described elementary driven gear 243 another axial ends are provided with internal tooth 2431, one reverses gear transmission gear 25 spline fitted on countershaft 241, the transmission gear 25 that reverses gear engages or separates by moving axially with the internal tooth 2431 of elementary driven gear 243, and described back fork assembly 26 is connected with the transmission gear 25 that reverses gear by shift fork 261.Pull back fork assembly 26 and make back fork assembly 26 reverse gear transmission gear 25 while engaging with the internal tooth 2431 of elementary driven gear 243, realize the locking of reversing gear.Pull back fork assembly 26 and make to reverse gear transmission gear 25 while separating with the internal tooth 2431 of elementary driven gear 243, realize the releasing of reversing gear.
Overriding clutch 244 includes that overrunning clutch body 2441, overriding clutch housing 2442, overriding clutch roller 2443, overriding clutch stage clip emit 2444, stage clip 2445, overriding clutch press spring base 2446 form.Stage clip 2445 be contained in overriding clutch stage clip emit 2444 and overriding clutch press spring base 2446 between, be assemblied in overrunning clutch body 2441, overriding clutch roller 2443 is assemblied in overrunning clutch body 2441, and under stage clip 2445 effects, overriding clutch stage clip emits 2444 to prop up overriding clutch roller 2443.
On described main shaft 231, circumferentially fix a last utmost point driving gear 234, the transmission shaft 271 in transmission shaft 271 assemblies is provided with a last utmost point driven gear 272 and engages with last utmost point driving gear 234.End utmost point driven gear 272 utilizes rectangular spline and transmission shaft 271 to fix, and axial limiting is on transmission shaft 271, one end of described transmission shaft 271 by bearings on motor right end cap 16, the other end of transmission shaft 271 by bearings on speed-changing mechanism case lid 21, on described transmission shaft 271, being also provided with an involute cylindrical gear 273 engages with the output gear 282 on a diff 28, one end of differential gear box 281 by bearings on motor right end cap 16, the other end of differential gear box 281 by bearings on speed-changing mechanism case lid 21.Described output gear 282 is also involute cylindrical gear.Described diff 28 is made up of differential gear box 281, sun wheel, screw, compensating-gear shaft, planetary wheel, bolt, output gear 282.Output gear 282 utilizes and is bolted on differential gear box 281.
Power transfer path:
Vehicle advances: when low vehicle speeds, motor shaft anticlockwise direction low speed rotation, primary drive gear anticlockwise direction low speed rotation, the centnifugal force of centrifugal-block is not enough to overcome extension spring drag effect, centrifugal-block under extension spring effect not with spindle assemblies on friction disc 233 combinations, elementary driven gear 243 is intermeshing with primary drive gear, elementary driven gear 243 clockwise direction rotations, under overriding clutch 244 effects, axle sleeve 245 clockwise direction rotations, countershaft 241 and axle sleeve 245 clockwise direction rotation under rectangular spline effect, countershaft driver gear 242 is clockwise direction rotation under rectangular spline effect, countershaft driver gear 242 is intermeshing with spindle transmission gear 232, spindle transmission gear 232 anticlockwise direction rotations, spindle assemblies is anticlockwise direction rotation under rectangular spline effect, equally, final stage driving gear is anticlockwise direction rotation under rectangular spline effect, final stage driving gear and final stage driven gear are intermeshing, drive the rotation of final stage driven gear clockwise direction, transmission shaft 271 is clockwise direction rotation under rectangular spline effect, on transmission shaft 271, involute cylindrical gear 273 is intermeshing with output gear 282, output gear 282 transmission diff 28 anticlockwise direction rotations.Vehicle low speed is moved ahead.
Along with the rising of motor speed, primary drive gear anticlockwise direction High Rotation Speed, centrifugal-block overcomes extension spring drag effect, centered by hinge-point, outwards throw away, with friction disc 233 combinations on spindle assemblies, the 232 anticlockwise direction rotations of transmission main shaft transmission gear, main shaft 231 is anticlockwise direction rotation under rectangular spline effect, final stage driving gear is anticlockwise direction rotation under rectangular spline effect in main shaft 231, countershaft driver gear 242 is intermeshing with spindle transmission gear 232, countershaft 241 is clockwise direction rotation under the rectangular spline effect of countershaft driver gear 242, axle sleeve 245 is clockwise direction rotation under the rectangular spline effect of countershaft 241, elementary driven gear 243 is intermeshing with primary drive gear, the also clockwise direction rotation of elementary driven gear 243, transmission over-running clutch 244 assembly clockwise direction rotations, axle sleeve 245 rotating speeds are higher than transmission over-running clutch 244 assembly rotation rotating speeds, not carry-over moment.Final stage driving gear and final stage driven gear are intermeshing, drive the rotation of final stage driven gear clockwise direction, transmission shaft 271 is clockwise direction rotation under rectangular spline effect, on transmission shaft 271, involute cylindrical gear and output gear 282 are intermeshing, output gear 282 transmission diff 28 assembly anticlockwise direction rotations.Vehicle high-speed is moved ahead.
Vehicle backing: pull back fork assembly 26, the rectangular spline intermeshing (as shown in figure 11) of make to reverse gear transmission gear 25 and elementary driven gear 243.Motor shaft is clockwise direction low speed rotation, primary drive gear clockwise direction low speed rotation, centrifugal-block under extension spring effect not with spindle assemblies on friction disc 233 combinations, elementary driven gear 243 is intermeshing with primary drive gear, elementary driven gear 243 anticlockwise direction rotations, transmission gear 25 anticlockwise direction under the rectangular spline effect of elementary driven gear 243 that reverses gear rotates, countershaft 241 is anticlockwise direction rotation under the rectangular spline effect of the transmission gear 25 that reverses gear, now, overriding clutch 244 and axle sleeve 245 same rotational speed anticlockwise direction rotations, not carry-over moment.Countershaft driver gear 242 is anticlockwise direction rotation under the rectangular spline effect of countershaft 241, countershaft driver gear 242 is intermeshing with spindle transmission gear 232, spindle transmission gear 232 clockwise direction rotations, main shaft 231 is clockwise direction rotation under rectangular spline effect, equally, final stage driving gear is clockwise direction rotation under rectangular spline effect, final stage driving gear and final stage driven gear are intermeshing, drive the rotation of final stage driven gear anticlockwise direction, transmission shaft 271 is anticlockwise direction rotation under rectangular spline effect, output gear 282 on transmission shaft 271 on invoice serration gear and diff 28 is intermeshing, output gear 282 transmission differential gear box 281 clockwise direction rotations.Make vehicle low-reverse.
The performances such as the utility model is simple in structure, low cost of manufacture, easy and simple to handle, long service life, travelling comfort is excellent, reliability is high, effectively promote car load acceleration capability, hill climbing ability, increase course continuation mileage.
Claims (5)
1. the automatic gear shifting drive device of a battery-driven car, comprise drive motor and speed-changing mechanism, the motor shaft of described drive motor covers at motor housing by bearings, it is characterized in that: described speed-changing mechanism comprises elementary driving gear component, spindle assemblies, countershaft assembly, the transmission gear that reverses gear, back fork assembly, the primary drive gear in described elementary driving gear component is circumferentially fixedly connected with the motor shaft of drive motor, one end of main shaft in described spindle assemblies by bearings in the endoporus of primary drive gear, the other end of main shaft by bearings on speed-changing mechanism case lid, on described main shaft, be circumferentially fixed with spindle transmission gear, on described spindle transmission gear, be fixed with friction disc, described primary drive gear pressed on ring axle center is uniform arranges multiple centrifugal-blocks, the fixed end of each centrifugal-block is hinged by bearing pin and primary drive gear, the free end of each centrifugal-block is connected with returning pull-spring, described centrifugal-block is arranged in the inner chamber of friction disc, form power transmission relationship by centrifugal motion and friction disc, in described countershaft assembly, one end of countershaft covers at motor housing by bearings, the other end of countershaft by bearings on speed-changing mechanism case lid, motor case lid is fixedly connected with speed-changing mechanism case lid, on described countershaft, be circumferentially fixed with countershaft driver gear, described countershaft driver gear engages with spindle transmission gear, on described countershaft, there is elementary driven gear by bearings, described elementary driven gear engages with primary drive gear, one axial end of described elementary driven gear is provided with overriding clutch, elementary driven gear forms power transmission relationship by overriding clutch and countershaft, described another axial end of elementary driven gear is provided with internal tooth, one reverses gear transmission gear spline fitted on countershaft, the transmission gear that reverses gear engages or separates by moving axially with the internal tooth of elementary driven gear, described back fork assembly is connected with the transmission gear that reverses gear by shift fork.
2. the automatic gear shifting drive device of battery-driven car according to claim 1, it is characterized in that: on described main shaft, circumferentially fix a last utmost point driving gear, one transmission shaft is provided with a last utmost point driven gear and engages with last utmost point driving gear, one end of described transmission shaft covers at motor housing by bearings, the other end of transmission shaft by bearings on speed-changing mechanism case lid, on described transmission shaft, being also provided with an involute cylindrical gear engages with the output gear on a diff, one end of differential gear box covers at motor housing by bearings, the other end of differential gear box by bearings on speed-changing mechanism case lid.
3. the automatic gear shifting drive device of battery-driven car according to claim 1, is characterized in that: described centrifugal-block is three.
4. the automatic gear shifting drive device of battery-driven car according to claim 1, is characterized in that: on described countershaft, be circumferentially fixed with an axle sleeve, described overriding clutch is arranged between elementary driven gear and axle sleeve.
5. the automatic gear shifting drive device of battery-driven car according to claim 1, it is characterized in that: described drive motor comprises motor shaft, stator core assembly, rotor core assembly, motor stator casing, motor left end cap and motor right end cap, heat expansion method flush fit between described stator core assembly and motor stator casing, and arrange and mark closely screw and prevent stator core assembly rotation, described motor left end cap, motor right end cap is separately positioned on stator core assembly two ends, and be fixedly connected with motor stator casing by bolt, described rotor core assembly is arranged on motor shaft, be arranged in stator core assembly, the two ends of described motor shaft respectively by bearings on motor left end cap and motor right end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420299100.4U CN203864443U (en) | 2014-06-06 | 2014-06-06 | Automatic speed change driving device for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420299100.4U CN203864443U (en) | 2014-06-06 | 2014-06-06 | Automatic speed change driving device for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203864443U true CN203864443U (en) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420299100.4U Expired - Fee Related CN203864443U (en) | 2014-06-06 | 2014-06-06 | Automatic speed change driving device for electric vehicle |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896081A (en) * | 2015-05-28 | 2015-09-09 | 广东戈兰玛汽车系统有限公司 | Automatic gear shifting device |
| TWI651219B (en) * | 2018-01-15 | 2019-02-21 | 紀孟豪 | Electric motor vehicle power system and automatic clutching method thereof |
| CN110966362A (en) * | 2019-12-04 | 2020-04-07 | 西南大学 | Full-mechanical self-adaptive automatic transmission with reverse gear function |
| CN111005990A (en) * | 2019-12-04 | 2020-04-14 | 西南大学 | Compact self-adaptive automatic speed changing system |
| WO2020207447A1 (en) * | 2019-04-10 | 2020-10-15 | 西南大学 | Mechanical dual-overrunning clutch shaft output adaptive automatic gearbox shaft assembly, gearbox and drive system |
-
2014
- 2014-06-06 CN CN201420299100.4U patent/CN203864443U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896081A (en) * | 2015-05-28 | 2015-09-09 | 广东戈兰玛汽车系统有限公司 | Automatic gear shifting device |
| TWI651219B (en) * | 2018-01-15 | 2019-02-21 | 紀孟豪 | Electric motor vehicle power system and automatic clutching method thereof |
| WO2020207447A1 (en) * | 2019-04-10 | 2020-10-15 | 西南大学 | Mechanical dual-overrunning clutch shaft output adaptive automatic gearbox shaft assembly, gearbox and drive system |
| CN110966362A (en) * | 2019-12-04 | 2020-04-07 | 西南大学 | Full-mechanical self-adaptive automatic transmission with reverse gear function |
| CN111005990A (en) * | 2019-12-04 | 2020-04-14 | 西南大学 | Compact self-adaptive automatic speed changing system |
| CN111005990B (en) * | 2019-12-04 | 2022-03-11 | 西南大学 | Compact self-adaptive automatic speed changing system |
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